Pa Performance C4 Super Comp Transmission on 2040-parts.com

Mercedes unveils one-off SLS and Dubai-spec G55 AMG

Fancy your Mercedes SLS supercar in gold? Then give Merc a call and tell them you're rather keen on this new AMG Desert Gold hue. Unveiled at the 2009 Dubai International Motor Show on a one-off SLS, Mercedes says this gilltering colour scheme will be made available to customers if there's enough demand.

Bentley brings even faster Continental V8 S to Detroit

Bentley first showed the Continental V8 S at the Frankfurt Motor Show a few months ago, but the slightly more powerful V8 Continental makes its North American debut in Detroit. More horsepower is always welcome, and the handsome new grand tourer delivers precisely 21 more. While Bentley has been concentrating on W12-powered Speed models -- even suggesting that it might be an entertaining drive on a racetrack -- the V8 range has been bolstered by its own modest performance enhancements: 21 more horsepower and 15 more lb-ft of torque bring the 4.0-liter engine's figures up to 521 and 502, respectively.

Concept Car of the Week: Nissan NX-21 (1983)

In the early 1980s, with the new millennium still seemingly an age away, Nissan Design America was tasked with imagining the family car of the future, while giving potential buyers a preview of the forthcoming N13 NX and EXA models. The resulting concept would be shown at the Tokyo motor show in 1983. Given confidence by the increasing success and expanding global presence of Japanese cars, including the previous generation N12 NX, Nissan's designers, led by Tom Semple, decided that the NX-21 (for 21st century) was the answer.